Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Arnold, Missouri, United States Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

August Air Quality Analysis

Arnold, Missouri, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
100AQI
Lowest AQI recorded on
7th Aug 2024
22AQI

Same Day Analysis (1st August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 42 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 31st Jul - 1st Aug 2026

Arnold, Missouri, United States

AQI
Day
Night
.

5 AM31st Jul 2026

8 PM

4 AM1st Aug 2026

Day time
Avg. Highest Time
1PM31st Jul

50AQI

Avg. Lowest Time
4PM31st Jul

30AQI

Night time
Avg. Highest Time
11PM31st Jul

54AQI

Avg. Lowest Time
3AM1st Aug

25AQI

In the last 24 hours,

Arnold's AQI reached its highest point of 54 at 11 PM during the Night, while the lowest point, 25, was recorded at 3 AM during the Night between 31st Jul and 1st Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Arnold, Missouri, United States

JulAug
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st
Day
Night
3rd Jul 2026215 AMAQI
3rd Jul 2026226 AMAQI
3rd Jul 2026167 AMAQI
3rd Jul 2026208 AMAQI
3rd Jul 2026249 AMAQI
3rd Jul 20262810 AMAQI
3rd Jul 20262211 AMAQI
3rd Jul 20261812 PMAQI
3rd Jul 2026161 PMAQI
3rd Jul 2026112 PMAQI
3rd Jul 2026273 PMAQI
3rd Jul 2026224 PMAQI
3rd Jul 2026205 PMAQI
3rd Jul 2026176 PMAQI
3rd Jul 2026227 PMAQI
3rd Jul 2026128 PMAQI
3rd Jul 2026109 PMAQI
3rd Jul 20262410 PMAQI
3rd Jul 20263011 PMAQI
4th Jul 20263412 AMAQI
4th Jul 2026441 AMAQI
4th Jul 2026262 AMAQI
4th Jul 2026263 AMAQI
4th Jul 2026204 AMAQI

31°C25/39°C

4th Jul 2026195 AMAQI
4th Jul 2026166 AMAQI
4th Jul 2026177 AMAQI
4th Jul 2026188 AMAQI
4th Jul 2026169 AMAQI
4th Jul 20261810 AMAQI
4th Jul 20261511 AMAQI
4th Jul 20261612 PMAQI
4th Jul 2026171 PMAQI
4th Jul 2026182 PMAQI
4th Jul 2026253 PMAQI
4th Jul 2026184 PMAQI
4th Jul 2026165 PMAQI
4th Jul 2026136 PMAQI
4th Jul 2026127 PMAQI
4th Jul 2026158 PMAQI
4th Jul 2026309 PMAQI
4th Jul 20262010 PMAQI
4th Jul 20264611 PMAQI
5th Jul 20269212 AMAQI
5th Jul 2026661 AMAQI
5th Jul 2026602 AMAQI
5th Jul 2026563 AMAQI
5th Jul 2026404 AMAQI

28°C24/36°C

5th Jul 2026355 AMAQI
5th Jul 2026266 AMAQI
5th Jul 2026287 AMAQI
5th Jul 2026248 AMAQI
5th Jul 2026289 AMAQI
5th Jul 20262410 AMAQI
5th Jul 20262411 AMAQI
5th Jul 20262012 PMAQI
5th Jul 2026321 PMAQI
5th Jul 2026162 PMAQI
5th Jul 2026203 PMAQI
5th Jul 2026104 PMAQI
5th Jul 2026155 PMAQI
5th Jul 2026156 PMAQI
5th Jul 202697 PMAQI
5th Jul 202688 PMAQI
5th Jul 2026229 PMAQI
5th Jul 20263010 PMAQI
5th Jul 20262411 PMAQI
6th Jul 20263312 AMAQI
6th Jul 2026321 AMAQI
6th Jul 2026262 AMAQI
6th Jul 2026263 AMAQI
6th Jul 2026214 AMAQI

25°C20/32°C

6th Jul 2026245 AMAQI
6th Jul 2026246 AMAQI
6th Jul 2026247 AMAQI
6th Jul 2026288 AMAQI
6th Jul 2026259 AMAQI
6th Jul 20262210 AMAQI
6th Jul 20261711 AMAQI
6th Jul 20261912 PMAQI
6th Jul 2026181 PMAQI
6th Jul 2026162 PMAQI
6th Jul 2026183 PMAQI
6th Jul 2026144 PMAQI
6th Jul 2026165 PMAQI
6th Jul 2026126 PMAQI
6th Jul 2026197 PMAQI
6th Jul 2026178 PMAQI
6th Jul 2026239 PMAQI
6th Jul 20261810 PMAQI
6th Jul 20262011 PMAQI
7th Jul 20262012 AMAQI
7th Jul 2026201 AMAQI
7th Jul 2026142 AMAQI
7th Jul 2026143 AMAQI
7th Jul 2026214 AMAQI

26°C20/32°C

7th Jul 2026195 AMAQI
7th Jul 2026196 AMAQI
7th Jul 2026217 AMAQI
7th Jul 2026258 AMAQI
7th Jul 2026259 AMAQI
7th Jul 20262310 AMAQI
7th Jul 20262511 AMAQI
7th Jul 20262312 PMAQI
7th Jul 2026211 PMAQI
7th Jul 2026192 PMAQI
7th Jul 2026233 PMAQI
7th Jul 2026274 PMAQI
7th Jul 2026155 PMAQI
7th Jul 2026276 PMAQI
7th Jul 2026257 PMAQI
7th Jul 2026298 PMAQI
7th Jul 2026299 PMAQI
7th Jul 20263110 PMAQI
7th Jul 20262211 PMAQI
8th Jul 20263812 AMAQI
8th Jul 2026421 AMAQI
8th Jul 2026382 AMAQI
8th Jul 2026213 AMAQI
8th Jul 2026294 AMAQI

26°C21/33°C

8th Jul 2026365 AMAQI
8th Jul 2026386 AMAQI
8th Jul 2026367 AMAQI
8th Jul 2026258 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20263110 AMAQI
8th Jul 20262511 AMAQI
8th Jul 20262012 PMAQI
8th Jul 2026191 PMAQI
8th Jul 2026342 PMAQI
8th Jul 2026293 PMAQI
8th Jul 2026294 PMAQI
8th Jul 2026345 PMAQI
8th Jul 2026296 PMAQI
8th Jul 2026317 PMAQI
8th Jul 2026318 PMAQI
8th Jul 2026319 PMAQI
8th Jul 20263110 PMAQI
8th Jul 20263311 PMAQI
9th Jul 20264012 AMAQI
9th Jul 2026621 AMAQI
9th Jul 2026322 AMAQI
9th Jul 2026203 AMAQI
9th Jul 2026424 AMAQI

27°C22/34°C

9th Jul 2026445 AMAQI
9th Jul 2026446 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026188 AMAQI
9th Jul 2026289 AMAQI
9th Jul 20261810 AMAQI
9th Jul 20261411 AMAQI
9th Jul 20262812 PMAQI
9th Jul 2026341 PMAQI
9th Jul 2026222 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026264 PMAQI
9th Jul 2026245 PMAQI
9th Jul 2026386 PMAQI
9th Jul 2026117 PMAQI
9th Jul 2026388 PMAQI
9th Jul 2026389 PMAQI
9th Jul 20262310 PMAQI
9th Jul 20262111 PMAQI
10th Jul 20262412 AMAQI
10th Jul 2026271 AMAQI
10th Jul 2026312 AMAQI
10th Jul 202683 AMAQI
10th Jul 2026214 AMAQI

27°C22/36°C

10th Jul 2026325 AMAQI
10th Jul 2026106 AMAQI
10th Jul 2026167 AMAQI
10th Jul 2026408 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20262810 AMAQI
10th Jul 20264211 AMAQI
10th Jul 20263812 PMAQI
10th Jul 2026191 PMAQI
10th Jul 2026362 PMAQI
10th Jul 2026293 PMAQI
10th Jul 2026294 PMAQI
10th Jul 2026365 PMAQI
10th Jul 2026256 PMAQI
10th Jul 2026237 PMAQI
10th Jul 2026248 PMAQI
10th Jul 2026249 PMAQI
10th Jul 20262710 PMAQI
10th Jul 20263411 PMAQI
11th Jul 20263412 AMAQI
11th Jul 2026261 AMAQI
11th Jul 2026292 AMAQI
11th Jul 2026183 AMAQI
11th Jul 2026184 AMAQI

27°C22/35°C

11th Jul 2026185 AMAQI
11th Jul 2026176 AMAQI
11th Jul 2026207 AMAQI
11th Jul 2026168 AMAQI
11th Jul 2026169 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262012 PMAQI
11th Jul 2026321 PMAQI
11th Jul 2026202 PMAQI
11th Jul 2026273 PMAQI
11th Jul 2026204 PMAQI
11th Jul 2026225 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026197 PMAQI
11th Jul 2026368 PMAQI
11th Jul 2026179 PMAQI
11th Jul 20261710 PMAQI
11th Jul 20262611 PMAQI
12th Jul 20261912 AMAQI
12th Jul 2026171 AMAQI
12th Jul 2026172 AMAQI
12th Jul 2026133 AMAQI
12th Jul 2026184 AMAQI

24°C21/27°C

12th Jul 2026185 AMAQI
12th Jul 2026166 AMAQI
12th Jul 2026187 AMAQI
12th Jul 2026228 AMAQI
12th Jul 2026229 AMAQI
12th Jul 20262010 AMAQI
12th Jul 20261911 AMAQI
12th Jul 20261712 PMAQI
12th Jul 2026141 PMAQI
12th Jul 2026142 PMAQI
12th Jul 2026163 PMAQI
12th Jul 2026164 PMAQI
12th Jul 2026185 PMAQI
12th Jul 2026256 PMAQI
12th Jul 2026167 PMAQI
12th Jul 2026208 PMAQI
12th Jul 2026239 PMAQI
12th Jul 20262210 PMAQI
12th Jul 20262911 PMAQI
13th Jul 20261912 AMAQI
13th Jul 2026231 AMAQI
13th Jul 2026222 AMAQI
13th Jul 2026213 AMAQI
13th Jul 2026224 AMAQI

26°C21/33°C

13th Jul 2026255 AMAQI
13th Jul 2026226 AMAQI
13th Jul 2026247 AMAQI
13th Jul 2026188 AMAQI
13th Jul 2026189 AMAQI
13th Jul 20262110 AMAQI
13th Jul 20262011 AMAQI
13th Jul 20261512 PMAQI
13th Jul 2026281 PMAQI
13th Jul 2026242 PMAQI
13th Jul 2026243 PMAQI
13th Jul 2026234 PMAQI
13th Jul 2026225 PMAQI
13th Jul 2026236 PMAQI
13th Jul 2026217 PMAQI
13th Jul 2026228 PMAQI
13th Jul 2026229 PMAQI
13th Jul 20262310 PMAQI
13th Jul 20263611 PMAQI
14th Jul 20263012 AMAQI
14th Jul 2026241 AMAQI
14th Jul 2026272 AMAQI
14th Jul 2026293 AMAQI
14th Jul 2026284 AMAQI

27°C20/34°C

14th Jul 2026185 AMAQI
14th Jul 2026206 AMAQI
14th Jul 2026247 AMAQI
14th Jul 2026248 AMAQI
14th Jul 2026309 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20261911 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026251 PMAQI
14th Jul 2026202 PMAQI
14th Jul 2026183 PMAQI
14th Jul 2026344 PMAQI
14th Jul 2026365 PMAQI
14th Jul 2026326 PMAQI
14th Jul 2026287 PMAQI
14th Jul 2026258 PMAQI
14th Jul 2026229 PMAQI
14th Jul 20262410 PMAQI
14th Jul 20262211 PMAQI
15th Jul 20262212 AMAQI
15th Jul 2026361 AMAQI
15th Jul 2026242 AMAQI
15th Jul 2026243 AMAQI
15th Jul 2026264 AMAQI

28°C20/36°C

15th Jul 2026265 AMAQI
15th Jul 2026286 AMAQI
15th Jul 2026247 AMAQI
15th Jul 2026268 AMAQI
15th Jul 2026309 AMAQI
15th Jul 20264410 AMAQI
15th Jul 20263211 AMAQI
15th Jul 20263612 PMAQI
15th Jul 2026341 PMAQI
15th Jul 2026232 PMAQI
15th Jul 2026243 PMAQI
15th Jul 2026244 PMAQI
15th Jul 2026245 PMAQI
15th Jul 2026236 PMAQI
15th Jul 2026187 PMAQI
15th Jul 2026168 PMAQI
15th Jul 2026209 PMAQI
15th Jul 20262010 PMAQI
15th Jul 20262611 PMAQI
16th Jul 20262412 AMAQI
16th Jul 2026201 AMAQI
16th Jul 2026202 AMAQI
16th Jul 2026203 AMAQI
16th Jul 2026304 AMAQI

28°C21/36°C

16th Jul 2026285 AMAQI
16th Jul 2026266 AMAQI
16th Jul 2026187 AMAQI
16th Jul 2026198 AMAQI
16th Jul 2026229 AMAQI
16th Jul 20262010 AMAQI
16th Jul 20262411 AMAQI
16th Jul 20262212 PMAQI
16th Jul 2026201 PMAQI
16th Jul 2026202 PMAQI
16th Jul 2026143 PMAQI
16th Jul 2026144 PMAQI
16th Jul 2026125 PMAQI
16th Jul 2026116 PMAQI
16th Jul 2026117 PMAQI
16th Jul 2026108 PMAQI
16th Jul 2026109 PMAQI
16th Jul 20261210 PMAQI
16th Jul 20261211 PMAQI
17th Jul 20262612 AMAQI
17th Jul 2026141 AMAQI
17th Jul 2026312 AMAQI
17th Jul 2026313 AMAQI
17th Jul 2026444 AMAQI

28°C23/35°C

17th Jul 2026445 AMAQI
17th Jul 2026446 AMAQI
17th Jul 2026507 AMAQI
17th Jul 2026408 AMAQI
17th Jul 2026449 AMAQI
17th Jul 20264610 AMAQI
17th Jul 20263811 AMAQI
17th Jul 20263812 PMAQI
17th Jul 2026421 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026493 PMAQI
17th Jul 2026554 PMAQI
17th Jul 2026585 PMAQI
17th Jul 2026536 PMAQI
17th Jul 2026447 PMAQI
17th Jul 2026468 PMAQI
17th Jul 2026449 PMAQI
17th Jul 20264610 PMAQI
17th Jul 20264611 PMAQI
18th Jul 20265012 AMAQI
18th Jul 2026481 AMAQI
18th Jul 2026422 AMAQI
18th Jul 2026463 AMAQI
18th Jul 2026424 AMAQI

28°C22/36°C

18th Jul 2026445 AMAQI
18th Jul 2026466 AMAQI
18th Jul 2026467 AMAQI
18th Jul 2026448 AMAQI
18th Jul 2026469 AMAQI
18th Jul 20264810 AMAQI
18th Jul 20264411 AMAQI
18th Jul 20264812 PMAQI
18th Jul 2026521 PMAQI
18th Jul 2026502 PMAQI
18th Jul 2026463 PMAQI
18th Jul 2026504 PMAQI
18th Jul 2026515 PMAQI
18th Jul 2026526 PMAQI
18th Jul 2026517 PMAQI
18th Jul 2026448 PMAQI
18th Jul 2026519 PMAQI
18th Jul 20265010 PMAQI
18th Jul 20264811 PMAQI
19th Jul 20264612 AMAQI
19th Jul 2026441 AMAQI
19th Jul 2026422 AMAQI
19th Jul 2026443 AMAQI
19th Jul 2026424 AMAQI

30°C23/38°C

19th Jul 2026465 AMAQI
19th Jul 2026466 AMAQI
19th Jul 2026487 AMAQI
19th Jul 2026468 AMAQI
19th Jul 2026489 AMAQI
19th Jul 20264810 AMAQI
19th Jul 20264611 AMAQI
19th Jul 20264812 PMAQI
19th Jul 2026481 PMAQI
19th Jul 2026512 PMAQI
19th Jul 2026513 PMAQI
19th Jul 2026424 PMAQI
19th Jul 2026485 PMAQI
19th Jul 2026406 PMAQI
19th Jul 2026517 PMAQI
19th Jul 2026428 PMAQI
19th Jul 2026559 PMAQI
19th Jul 20266210 PMAQI
19th Jul 20266711 PMAQI
20th Jul 20267212 AMAQI
20th Jul 2026741 AMAQI
20th Jul 2026852 AMAQI
20th Jul 2026833 AMAQI
20th Jul 2026954 AMAQI

28°C25/33°C

20th Jul 2026965 AMAQI
20th Jul 20261046 AMAQI
20th Jul 20261107 AMAQI
20th Jul 20261108 AMAQI
20th Jul 20261249 AMAQI
20th Jul 202612210 AMAQI
20th Jul 202612411 AMAQI
20th Jul 202610312 PMAQI
20th Jul 2026911 PMAQI
20th Jul 2026882 PMAQI
20th Jul 2026773 PMAQI
20th Jul 2026764 PMAQI
20th Jul 2026685 PMAQI
20th Jul 2026706 PMAQI
20th Jul 2026747 PMAQI
20th Jul 2026708 PMAQI
20th Jul 2026669 PMAQI
20th Jul 20265811 PMAQI
21st Jul 20265512 AMAQI
21st Jul 2026611 AMAQI
21st Jul 2026582 AMAQI
21st Jul 2026583 AMAQI
21st Jul 2026564 AMAQI

29°C22/37°C

21st Jul 2026445 AMAQI
21st Jul 2026506 AMAQI
21st Jul 2026447 AMAQI
21st Jul 2026448 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265110 AMAQI
21st Jul 20264211 AMAQI
21st Jul 20264412 PMAQI
21st Jul 2026501 PMAQI
21st Jul 2026442 PMAQI
21st Jul 2026463 PMAQI
21st Jul 2026504 PMAQI
21st Jul 2026515 PMAQI
21st Jul 2026536 PMAQI
21st Jul 2026557 PMAQI
21st Jul 2026528 PMAQI
21st Jul 2026449 PMAQI
21st Jul 20265110 PMAQI
21st Jul 20265011 PMAQI
22nd Jul 20264612 AMAQI
22nd Jul 2026421 AMAQI
22nd Jul 2026422 AMAQI
22nd Jul 2026423 AMAQI
22nd Jul 2026444 AMAQI

30°C25/38°C

22nd Jul 2026485 AMAQI
22nd Jul 2026486 AMAQI
22nd Jul 2026507 AMAQI
22nd Jul 2026508 AMAQI
22nd Jul 2026509 AMAQI
22nd Jul 20264410 AMAQI
22nd Jul 20264611 AMAQI
22nd Jul 20264012 PMAQI
22nd Jul 2026461 PMAQI
22nd Jul 2026362 PMAQI
22nd Jul 2026503 PMAQI
22nd Jul 2026294 PMAQI
22nd Jul 2026515 PMAQI
22nd Jul 2026536 PMAQI
22nd Jul 2026487 PMAQI
22nd Jul 2026368 PMAQI
22nd Jul 2026549 PMAQI
22nd Jul 20263810 PMAQI
22nd Jul 20263811 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026521 AMAQI
23rd Jul 2026522 AMAQI
23rd Jul 2026403 AMAQI
23rd Jul 2026364 AMAQI

24°C19/29°C

23rd Jul 2026495 AMAQI
23rd Jul 2026486 AMAQI
23rd Jul 2026547 AMAQI
23rd Jul 2026588 AMAQI
23rd Jul 2026579 AMAQI
23rd Jul 20264610 AMAQI
23rd Jul 20264211 AMAQI
23rd Jul 20264512 PMAQI
23rd Jul 2026561 PMAQI
23rd Jul 2026512 PMAQI
23rd Jul 2026323 PMAQI
23rd Jul 2026404 PMAQI
23rd Jul 2026485 PMAQI
23rd Jul 2026236 PMAQI
23rd Jul 2026537 PMAQI
23rd Jul 2026448 PMAQI
23rd Jul 2026299 PMAQI
23rd Jul 20262110 PMAQI
23rd Jul 20263611 PMAQI
24th Jul 20264612 AMAQI
24th Jul 2026421 AMAQI
24th Jul 2026342 AMAQI
24th Jul 2026253 AMAQI
24th Jul 2026384 AMAQI

23°C18/30°C

24th Jul 2026465 AMAQI
24th Jul 2026386 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026428 AMAQI
24th Jul 2026409 AMAQI
24th Jul 20264410 AMAQI
24th Jul 20264611 AMAQI
24th Jul 20264212 PMAQI
24th Jul 2026461 PMAQI
24th Jul 2026562 PMAQI
24th Jul 2026313 PMAQI
24th Jul 2026384 PMAQI
24th Jul 2026505 PMAQI
24th Jul 2026406 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026348 PMAQI
24th Jul 2026509 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20264211 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026461 AMAQI
25th Jul 2026422 AMAQI
25th Jul 2026443 AMAQI
25th Jul 2026464 AMAQI

22°C17/30°C

25th Jul 2026425 AMAQI
25th Jul 2026486 AMAQI
25th Jul 2026407 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026569 AMAQI
25th Jul 20265310 AMAQI
25th Jul 20264811 AMAQI
25th Jul 20264812 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026492 PMAQI
25th Jul 2026513 PMAQI
25th Jul 2026484 PMAQI
25th Jul 2026485 PMAQI
25th Jul 2026466 PMAQI
25th Jul 2026497 PMAQI
25th Jul 2026518 PMAQI
25th Jul 2026499 PMAQI
25th Jul 20264610 PMAQI
25th Jul 20264411 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026461 AMAQI
26th Jul 2026482 AMAQI
26th Jul 2026483 AMAQI
26th Jul 2026514 AMAQI

27°C21/35°C

26th Jul 2026525 AMAQI
26th Jul 2026486 AMAQI
26th Jul 2026487 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026509 AMAQI
26th Jul 20264610 AMAQI
26th Jul 20264811 AMAQI
26th Jul 20264812 PMAQI
26th Jul 2026461 PMAQI
26th Jul 2026462 PMAQI
26th Jul 2026513 PMAQI
26th Jul 2026524 PMAQI
26th Jul 2026515 PMAQI
26th Jul 2026536 PMAQI
26th Jul 2026527 PMAQI
26th Jul 2026568 PMAQI
26th Jul 2026509 PMAQI
26th Jul 20264810 PMAQI
26th Jul 20264911 PMAQI
27th Jul 20265112 AMAQI
27th Jul 2026531 AMAQI
27th Jul 2026462 AMAQI
27th Jul 2026503 AMAQI
27th Jul 2026534 AMAQI

32°C25/40°C

27th Jul 2026505 AMAQI
27th Jul 2026556 AMAQI
27th Jul 2026517 AMAQI
27th Jul 2026518 AMAQI
27th Jul 2026519 AMAQI
27th Jul 20265310 AMAQI
27th Jul 20265411 AMAQI
27th Jul 20265012 PMAQI
27th Jul 2026531 PMAQI
27th Jul 2026512 PMAQI
27th Jul 2026503 PMAQI
27th Jul 2026514 PMAQI
27th Jul 2026515 PMAQI
27th Jul 2026536 PMAQI
27th Jul 2026627 PMAQI
27th Jul 2026538 PMAQI
27th Jul 2026579 PMAQI
27th Jul 20265110 PMAQI
27th Jul 20264911 PMAQI
28th Jul 20264412 AMAQI
28th Jul 2026501 AMAQI
28th Jul 2026442 AMAQI
28th Jul 2026423 AMAQI
28th Jul 2026484 AMAQI

32°C25/40°C

28th Jul 2026515 AMAQI
28th Jul 2026486 AMAQI
28th Jul 2026507 AMAQI
28th Jul 2026518 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20265310 AMAQI
28th Jul 20265411 AMAQI
28th Jul 20265612 PMAQI
28th Jul 2026531 PMAQI
28th Jul 2026482 PMAQI
28th Jul 2026533 PMAQI
28th Jul 2026524 PMAQI
28th Jul 2026545 PMAQI
28th Jul 2026546 PMAQI
28th Jul 2026507 PMAQI
28th Jul 2026488 PMAQI
28th Jul 2026529 PMAQI
28th Jul 20265010 PMAQI
28th Jul 20264811 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026501 AMAQI
29th Jul 2026512 AMAQI
29th Jul 2026483 AMAQI
29th Jul 2026494 AMAQI

30°C25/37°C

29th Jul 2026465 AMAQI
29th Jul 2026506 AMAQI
29th Jul 2026467 AMAQI
29th Jul 2026468 AMAQI
29th Jul 2026449 AMAQI
29th Jul 20264610 AMAQI
29th Jul 20264011 AMAQI
29th Jul 20263612 PMAQI
29th Jul 2026421 PMAQI
29th Jul 2026402 PMAQI
29th Jul 2026363 PMAQI
29th Jul 2026384 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026426 PMAQI
29th Jul 2026277 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026509 PMAQI
29th Jul 20264410 PMAQI
29th Jul 20263411 PMAQI
30th Jul 20264612 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026442 AMAQI
30th Jul 2026463 AMAQI
30th Jul 2026444 AMAQI

27°C21/34°C

30th Jul 2026525 AMAQI
30th Jul 2026366 AMAQI
30th Jul 2026487 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026449 AMAQI
30th Jul 20264810 AMAQI
30th Jul 20264011 AMAQI
30th Jul 20265012 PMAQI
30th Jul 2026521 PMAQI
30th Jul 2026422 PMAQI
30th Jul 2026483 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026425 PMAQI
30th Jul 2026446 PMAQI
30th Jul 2026447 PMAQI
30th Jul 2026468 PMAQI
30th Jul 2026449 PMAQI
30th Jul 20264010 PMAQI
30th Jul 20264811 PMAQI
31st Jul 20264412 AMAQI
31st Jul 2026421 AMAQI
31st Jul 2026442 AMAQI
31st Jul 2026463 AMAQI
31st Jul 2026464 AMAQI

26°C19/34°C

31st Jul 2026445 AMAQI
31st Jul 2026466 AMAQI
31st Jul 2026447 AMAQI
31st Jul 2026468 AMAQI
31st Jul 2026449 AMAQI
31st Jul 20264810 AMAQI
31st Jul 20264811 AMAQI
31st Jul 20264612 PMAQI
31st Jul 2026501 PMAQI
31st Jul 2026462 PMAQI
31st Jul 2026343 PMAQI
31st Jul 2026304 PMAQI
31st Jul 2026445 PMAQI
31st Jul 2026446 PMAQI
31st Jul 2026487 PMAQI
31st Jul 2026488 PMAQI
31st Jul 2026489 PMAQI
31st Jul 20265010 PMAQI
31st Jul 20265411 PMAQI
1st Aug 20265112 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026502 AMAQI
1st Aug 2026253 AMAQI
1st Aug 2026364 AMAQI

24°C21/29°C

1st Aug 2026465 AMAQI
5 AM
1st Aug 2026486 AMAQI
1st Aug 2026347 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026329 AMAQI
1st Aug 20263410 AMAQI
1st Aug 20264211 AMAQI
1st Aug 20264212 PMAQI
12 PM
1st Aug 2026461 PMAQI
1st Aug 2026462 PMAQI
1st Aug 2026513 PMAQI
1st Aug 2026494 PMAQI
1st Aug 2026465 PMAQI
1st Aug 2026366 PMAQI
1st Aug 2026387 PMAQI
1st Aug 2026538 PMAQI
8 PM
1st Aug 2026299 PMAQI
1st Aug 20264410 PMAQI
1st Aug 20263811 PMAQI
12 AM
4 AM

21°C19/23°C

Day time
Avg. Highest Time
5 AM - 10 AM

39AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
2 PM - 8 PM

36AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 10 AM (Avg. 39), while the lowest AQI was between 2 PM to 8 PM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 1 AM

40AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
3 AM

34AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 40), while the lowest AQI was between 3 AM to 3 AM (Avg. 34).

2026 Days Vs Air Quality

Arnold, Missouri, United States

2026

98%

205

2%

5

Total number of days with different AQI categories in last 213 days in 2026 (152 days remaining)

Good
205 Days
Moderate
5 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 98%

Health Risk Level:

Very Low

In 2026, 98% of 213 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Arnold, Missouri, United States

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
52AQI (US)
2nd January 2026
48AQI (US)
3rd January 2026
37AQI (US)
4th January 2026
50AQI (US)
5th January 2026
38AQI (US)
6th January 2026
36AQI (US)
7th January 2026
24AQI (US)
8th January 2026
37AQI (US)
9th January 2026
19AQI (US)
10th January 2026
20AQI (US)
11th January 2026
14AQI (US)
12th January 2026
20AQI (US)
13th January 2026
20AQI (US)
14th January 2026
12AQI (US)
15th January 2026
13AQI (US)
16th January 2026
16AQI (US)
17th January 2026
10AQI (US)
18th January 2026
15AQI (US)
19th January 2026
15AQI (US)
20th January 2026
22AQI (US)
21st January 2026
34AQI (US)
22nd January 2026
41AQI (US)
23rd January 2026
38AQI (US)
24th January 2026
34AQI (US)
25th January 2026
39AQI (US)
26th January 2026
33AQI (US)
27th January 2026
24AQI (US)
28th January 2026
32AQI (US)
29th January 2026
38AQI (US)
30th January 2026
44AQI (US)
31st January 2026
28AQI (US)
1st February 2026
35AQI (US)
2nd February 2026
42AQI (US)
3rd February 2026
38AQI (US)
4th February 2026
30AQI (US)
5th February 2026
43AQI (US)
6th February 2026
31AQI (US)
7th February 2026
31AQI (US)
8th February 2026
29AQI (US)
9th February 2026
36AQI (US)
10th February 2026
36AQI (US)
11th February 2026
27AQI (US)
12th February 2026
24AQI (US)
13th February 2026
27AQI (US)
14th February 2026
30AQI (US)
15th February 2026
30AQI (US)
16th February 2026
32AQI (US)
17th February 2026
28AQI (US)
18th February 2026
39AQI (US)
19th February 2026
32AQI (US)
20th February 2026
26AQI (US)
21st February 2026
22AQI (US)
22nd February 2026
23AQI (US)
23rd February 2026
29AQI (US)
24th February 2026
30AQI (US)
25th February 2026
39AQI (US)
26th February 2026
28AQI (US)
27th February 2026
27AQI (US)
28th February 2026
28AQI (US)
1st March 2026
28AQI (US)
2nd March 2026
36AQI (US)
3rd March 2026
27AQI (US)
4th March 2026
34AQI (US)
5th March 2026
24AQI (US)
6th March 2026
20AQI (US)
7th March 2026
32AQI (US)
8th March 2026
33AQI (US)
9th March 2026
29AQI (US)
10th March 2026
26AQI (US)
11th March 2026
34AQI (US)
12th March 2026
29AQI (US)
13th March 2026
31AQI (US)
14th March 2026
24AQI (US)
15th March 2026
18AQI (US)
16th March 2026
27AQI (US)
17th March 2026
30AQI (US)
18th March 2026
20AQI (US)
19th March 2026
32AQI (US)
20th March 2026
43AQI (US)
21st March 2026
34AQI (US)
22nd March 2026
32AQI (US)
23rd March 2026
31AQI (US)
24th March 2026
25AQI (US)
25th March 2026
28AQI (US)
26th March 2026
28AQI (US)
27th March 2026
22AQI (US)
28th March 2026
15AQI (US)
29th March 2026
15AQI (US)
30th March 2026
22AQI (US)
31st March 2026
20AQI (US)
1st April 2026
22AQI (US)
2nd April 2026
16AQI (US)
3rd April 2026
15AQI (US)
4th April 2026
28AQI (US)
5th April 2026
28AQI (US)
6th April 2026
27AQI (US)
7th April 2026
24AQI (US)
8th April 2026
30AQI (US)
9th April 2026
24AQI (US)
10th April 2026
26AQI (US)
11th April 2026
27AQI (US)
12th April 2026
26AQI (US)
13th April 2026
19AQI (US)
14th April 2026
20AQI (US)
15th April 2026
23AQI (US)
16th April 2026
20AQI (US)
17th April 2026
18th April 2026
20AQI (US)
19th April 2026
21AQI (US)
20th April 2026
18AQI (US)
21st April 2026
17AQI (US)
22nd April 2026
23rd April 2026
18AQI (US)
24th April 2026
18AQI (US)
25th April 2026
14AQI (US)
26th April 2026
22AQI (US)
27th April 2026
20AQI (US)
28th April 2026
20AQI (US)
29th April 2026
19AQI (US)
30th April 2026
24AQI (US)
1st May 2026
18AQI (US)
2nd May 2026
17AQI (US)
3rd May 2026
19AQI (US)
4th May 2026
33AQI (US)
5th May 2026
33AQI (US)
6th May 2026
20AQI (US)
7th May 2026
19AQI (US)
8th May 2026
20AQI (US)
9th May 2026
10th May 2026
21AQI (US)
11th May 2026
19AQI (US)
12th May 2026
23AQI (US)
13th May 2026
26AQI (US)
14th May 2026
21AQI (US)
15th May 2026
37AQI (US)
16th May 2026
46AQI (US)
17th May 2026
48AQI (US)
18th May 2026
48AQI (US)
19th May 2026
52AQI (US)
20th May 2026
44AQI (US)
21st May 2026
37AQI (US)
22nd May 2026
37AQI (US)
23rd May 2026
45AQI (US)
24th May 2026
37AQI (US)
25th May 2026
37AQI (US)
26th May 2026
22AQI (US)
27th May 2026
14AQI (US)
28th May 2026
17AQI (US)
29th May 2026
17AQI (US)
30th May 2026
20AQI (US)
31st May 2026
16AQI (US)
1st June 2026
18AQI (US)
2nd June 2026
17AQI (US)
3rd June 2026
20AQI (US)
4th June 2026
22AQI (US)
5th June 2026
19AQI (US)
6th June 2026
18AQI (US)
7th June 2026
24AQI (US)
8th June 2026
18AQI (US)
9th June 2026
17AQI (US)
10th June 2026
17AQI (US)
11th June 2026
14AQI (US)
12th June 2026
13AQI (US)
13th June 2026
19AQI (US)
14th June 2026
16AQI (US)
15th June 2026
15AQI (US)
16th June 2026
17AQI (US)
17th June 2026
19AQI (US)
18th June 2026
22AQI (US)
19th June 2026
16AQI (US)
20th June 2026
15AQI (US)
21st June 2026
17AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
13AQI (US)
24th June 2026
14AQI (US)
25th June 2026
14AQI (US)
26th June 2026
14AQI (US)
27th June 2026
19AQI (US)
28th June 2026
25AQI (US)
29th June 2026
29AQI (US)
30th June 2026
54AQI (US)
1st July 2026
37AQI (US)
2nd July 2026
28AQI (US)
3rd July 2026
20AQI (US)
4th July 2026
21AQI (US)
5th July 2026
30AQI (US)
6th July 2026
21AQI (US)
7th July 2026
22AQI (US)
8th July 2026
31AQI (US)
9th July 2026
30AQI (US)
10th July 2026
27AQI (US)
11th July 2026
23AQI (US)
12th July 2026
19AQI (US)
13th July 2026
22AQI (US)
14th July 2026
26AQI (US)
15th July 2026
26AQI (US)
16th July 2026
18AQI (US)
17th July 2026
42AQI (US)
18th July 2026
47AQI (US)
19th July 2026
48AQI (US)
20th July 2026
89AQI (US)
21st July 2026
50AQI (US)
22nd July 2026
45AQI (US)
23rd July 2026
44AQI (US)
24th July 2026
41AQI (US)
25th July 2026
47AQI (US)
26th July 2026
49AQI (US)
27th July 2026
52AQI (US)
28th July 2026
50AQI (US)
29th July 2026
42AQI (US)
30th July 2026
45AQI (US)
31st July 2026
45AQI (US)
1st August 2026
42AQI (US)
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

29AQI (US)

31AQI (US)

27AQI (US)

22AQI (US)

29AQI (US)

19AQI (US)

37AQI (US)

42AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202628AQI (US)

30
1
28
31
28
29
1
29
1
29
2
1
205
5

Highest AQI (US) recorded in

August

42AQI (US)

Lowest AQI (US) recorded in

June

19AQI (US)

202536AQI (US)

29
2
27
1
28
2
1
29
1
30
1
24
6
25
6
26
5
22
8
20
11
28
2
25
6
313
51
1

Highest AQI (US) recorded in

June

42AQI (US)

Lowest AQI (US) recorded in

January

27AQI (US)

202433AQI (US)

29
1
24
5
30
1
30
31
30
26
5
26
5
30
28
3
30
30
1
344
21

Highest AQI (US) recorded in

July

40AQI (US)

Lowest AQI (US) recorded in

November

25AQI (US)

202338AQI (US)

28
2
27
1
30
1
28
2
23
8
9
21
27
4
26
5
26
4
30
1
28
1
31
313
50

Highest AQI (US) recorded in

June

56AQI (US)

Lowest AQI (US) recorded in

December

26AQI (US)

202237AQI (US)

22
8
21
1
31
17
27
4
23
7
17
6
1
28
1
28
3
27
3
26
5
268
38

Highest AQI (US) recorded in

January

48AQI (US)

Lowest AQI (US) recorded in

February

28AQI (US)

202136AQI (US)

29
26
2
31
28
2
28
3
24
6
14
16
1
23
8
26
4
31
29
1
23
8
312
50
1

Highest AQI (US) recorded in

July

54AQI (US)

Lowest AQI (US) recorded in

November

25AQI (US)

202035AQI (US)

1
20
18
26
4
27
3
1
30
1
29
1
28
3
30
24
7
233
19
1

Highest AQI (US) recorded in

June

43AQI (US)

Lowest AQI (US) recorded in

November

27AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
38AQI (US)
Least Polluted Year Recorded
2026(Avg.)
28AQI (US)

Arnold's annual 2026 AQI (US) (28) shows an average percentage change of -21.7% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (36), 2022 (37), 2023 (38), 2024 (33), 2025 (36).